/* =============================================
   RED AND BLUE – MAIN STYLESHEET
   ============================================= */

/* ── TOKENS ── */
:root {
  --red:           #E8192C;
  --red-dim:       rgba(232, 25, 44, 0.12);
  --blue:          #1A3FAA;
  --blue-dim:      rgba(26, 63, 170, 0.12);
  --grad:          linear-gradient(135deg, var(--red) 0%, var(--blue) 100%);
  --grad-text:     linear-gradient(135deg, var(--red) 20%, var(--blue) 80%);

  /* Light mode */
  --bg:            #F5F5FA;
  --bg-alt:        #FFFFFF;
  --surface:       #FFFFFF;
  --surface-2:     #EDEDF5;
  --border:        rgba(0, 0, 0, 0.07);
  --text:          #0C0C1A;
  --text-2:        #4A4A62;
  --text-3:        #9090A8;

  --font-d:        'Syne', sans-serif;
  --font-b:        'DM Sans', sans-serif;

  --ease-spring:   cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out:      cubic-bezier(0.22, 1, 0.36, 1);

  --r-sm:          8px;
  --r-md:          16px;
  --r-lg:          24px;
  --r-xl:          32px;
  --r-full:        9999px;

  --shadow-sm:     0 2px 8px rgba(0,0,0,0.05);
  --shadow-md:     0 8px 32px rgba(0,0,0,0.08);
  --shadow-lg:     0 20px 60px rgba(0,0,0,0.10);
  --shadow-color:  0 8px 32px rgba(232,25,44,0.15);

  --nav-h:         68px;
  --container:     1160px;
}

/* Dark mode via system preference */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:           #080810;
    --bg-alt:       #0E0E1A;
    --surface:      #12121E;
    --surface-2:    #1A1A2A;
    --border:       rgba(255,255,255,0.07);
    --text:         #F0F0FA;
    --text-2:       #AAAACC;
    --text-3:       #666688;
    --shadow-sm:    0 2px 8px rgba(0,0,0,0.4);
    --shadow-md:    0 8px 32px rgba(0,0,0,0.5);
    --shadow-lg:    0 20px 60px rgba(0,0,0,0.6);
  }
}

/* Dark mode via toggle */
[data-theme="dark"] {
  --bg:           #080810;
  --bg-alt:       #0E0E1A;
  --surface:      #12121E;
  --surface-2:    #1A1A2A;
  --border:       rgba(255,255,255,0.07);
  --text:         #F0F0FA;
  --text-2:       #AAAACC;
  --text-3:       #666688;
  --shadow-sm:    0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:    0 8px 32px rgba(0,0,0,0.5);
  --shadow-lg:    0 20px 60px rgba(0,0,0,0.6);
}


/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; overflow-x: hidden; }
body {
  font-family: var(--font-b);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

@supports (overflow: clip) {
  html { overflow-x: clip; }
  body { overflow-x: clip; }
}

html.app-loading body {
  overflow: hidden;
}

/* ── PAGE LOADER ── */
.page-loader {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 20% 20%, var(--red-dim), transparent 55%),
              radial-gradient(circle at 80% 80%, var(--blue-dim), transparent 55%),
              var(--bg);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.page-loader__inner {
  display: grid;
  place-items: center;
  gap: 0.9rem;
}
.page-loader__ring {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 3px solid var(--border);
  border-top-color: var(--red);
  animation: spin 0.9s linear infinite;
}
.page-loader__text {
  font-family: var(--font-d);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}

html.app-loading .page-loader {
  opacity: 1;
  visibility: visible;
}
html.app-ready .page-loader {
  opacity: 0;
  visibility: hidden;
}
img, svg { display: block; max-width: 100%; }

/* Screen-reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul, ol { list-style: none; }
em { font-style: italic; }


/* ── GRAIN OVERLAY ── */
.grain-svg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.03;
}


/* ── GRADIENT TEXT ── */
.section__title em,
.hero__title em {
  font-style: italic;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}


/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--r-full);
  font-family: var(--font-d);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  position: relative;
  overflow: hidden;
}

/* Primary – gradient fill (all non-ghost variants) */
.btn:not(.btn--ghost) {
  background: var(--grad);
  color: #fff;
  box-shadow: var(--shadow-color);
}
.btn:not(.btn--ghost):hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 40px rgba(232,25,44,0.25);
}
.btn:not(.btn--ghost):active { transform: translateY(0) scale(0.98); }

/* Ghost */
.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn--ghost:hover {
  background: var(--surface-2);
  transform: translateY(-2px);
  border-color: var(--text-3);
}

/* Sizes */
.btn--sm  { padding: 0.5rem 1.1rem; font-size: 0.8125rem; }
.btn--lg  { padding: 0.9rem 2rem; font-size: 0.9375rem; }
.btn--full { width: 100%; justify-content: center; }

/* Spinner state */
.btn__spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
.btn--loading .btn__label { opacity: 0; }
.btn--loading .btn__spinner { display: block; position: absolute; }

@keyframes spin { to { transform: rotate(360deg); } }


/* ── NAVIGATION ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
}
.nav.scrolled {
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 0;
}
.nav__right {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

/* Logo */
.logo {
  font-family: var(--font-d);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.1em;
}
.logo__red  { color: var(--red); }
.logo__amp  { color: var(--text-3); font-weight: 400; margin: 0 0.05em; }
.logo__blue { color: var(--blue); }

/* Theme toggle */
.theme-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  transition: background 0.2s, color 0.2s;
}
.theme-btn:hover { background: var(--surface-2); color: var(--text); }
.theme-btn svg { width: 18px; height: 18px; }

/* Light: show sun / Dark: show moon */
[data-theme="dark"] .theme-btn__sun,
:root:not([data-theme]) .theme-btn__sun  { display: none; }
[data-theme="dark"] .theme-btn__moon     { display: block; }
[data-theme="light"] .theme-btn__moon   { display: none; }
[data-theme="light"] .theme-btn__sun    { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .theme-btn__moon { display: block; }
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .theme-btn__sun  { display: block; }
  :root:not([data-theme]) .theme-btn__moon { display: none; }
}


/* Language toggle */
.lang-btn {
  height: 36px;
  min-width: 40px;
  padding: 0 0.7rem;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-d);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-2);
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.lang-btn:hover {
  background: var(--surface-2);
  color: var(--text);
  border-color: transparent;
}
.lang-btn:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .lang-btn {
    color: var(--text);
    border-color: rgba(240, 240, 250, 0.28);
    background: rgba(255, 255, 255, 0.06);
  }
  :root:not([data-theme="light"]) .lang-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(240, 240, 250, 0.45);
  }
}

[data-theme="dark"] .lang-btn {
  color: var(--text);
  border-color: rgba(240, 240, 250, 0.28);
  background: rgba(255, 255, 255, 0.06);
}
[data-theme="dark"] .lang-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(240, 240, 250, 0.45);
}


/* ── SECTION COMMONS ── */
.section__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 6rem 1.5rem;
}
.section__head { margin-bottom: 4rem; max-width: none; }
.section__head--center { text-align: center; }
.section__tag {
  display: inline-block;
  font-family: var(--font-d);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 1rem;
}
.section__title {
  font-family: var(--font-d);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
}
.section__desc {
  margin-top: 1.25rem;
  font-size: 1.0625rem;
  color: var(--text-2);
  max-width: none;
}
.section__head--center .section__desc { margin-left: auto; margin-right: auto; }


/* ── HERO ── */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-h);
}

/* Gradient mesh */
.hero__mesh {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.mesh {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}
.mesh--1 {
  width: 600px; height: 600px;
  top: -10%; left: -10%;
  background: var(--red-dim);
  animation: float1 12s ease-in-out infinite;
}
.mesh--2 {
  width: 500px; height: 500px;
  bottom: -15%; right: -5%;
  background: var(--blue-dim);
  animation: float2 15s ease-in-out infinite;
}
.mesh--3 {
  width: 300px; height: 300px;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  background: radial-gradient(circle, var(--blue-dim) 0%, transparent 70%);
  animation: float3 10s ease-in-out infinite;
}
@keyframes float1 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(30px,20px); } }
@keyframes float2 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-20px,30px); } }
@keyframes float3 { 0%,100% { transform: translate(-50%,-50%) scale(1); } 50% { transform: translate(-50%,-50%) scale(1.15); } }

.hero__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  position: relative;
  z-index: 1;
}

.hero__tag {
  font-family: var(--font-d);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 1.25rem;
}

.hero__title {
  font-family: var(--font-d);
  font-size: clamp(2.75rem, 5.5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.04em;
  color: var(--text);
  margin-bottom: 1.5rem;
}

.hero__sub {
  font-size: 1.0625rem;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 440px;
  margin-bottom: 2.5rem;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Hero visual */
.hero__visual {
  position: relative;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__blob {
  position: absolute;
  border-radius: 60% 40% 55% 45% / 50% 45% 55% 50%;
}
.hero__blob--1 {
  width: 320px; height: 320px;
  background: var(--grad);
  opacity: 0.08;
  animation: morph 8s ease-in-out infinite;
}
.hero__blob--2 {
  width: 240px; height: 240px;
  border: 1.5px solid var(--border);
  animation: morph 12s ease-in-out infinite reverse;
}
@keyframes morph {
  0%,100% { border-radius: 60% 40% 55% 45% / 50% 45% 55% 50%; }
  33%      { border-radius: 45% 55% 40% 60% / 55% 50% 45% 50%; }
  66%      { border-radius: 55% 45% 60% 40% / 45% 55% 50% 45%; }
}

.hero__badge {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: var(--shadow-md);
  font-family: var(--font-d);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}
.hero__badge--top    { top: 15%; right: 0; }
.hero__badge--bottom { bottom: 15%; left: 0; }

.badge__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34,197,94,0.2);
  animation: pulse-green 2s ease infinite;
}
@keyframes pulse-green {
  0%,100% { box-shadow: 0 0 0 3px rgba(34,197,94,0.2); }
  50%      { box-shadow: 0 0 0 6px rgba(34,197,94,0.05); }
}

.badge__num {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1;
}
.scroll__line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--text-3) 0%, transparent 100%);
  animation: scroll-line 1.6s ease-in-out infinite;
}
@keyframes scroll-line {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}


/* ── SERVICES ── */
.services { background: var(--bg-alt); }

.services__intro {
  max-width: none;
  color: var(--text-2);
  margin-top: 1rem;
  line-height: 1.7;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.svc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease, border-color 0.3s ease;
  cursor: default;
}
.svc-card--alt {
  background: var(--bg);
}
.svc-card--alt::before { opacity: 0.02; }
.svc-card--alt .svc-card__cta {
  box-shadow: none;
  border: 1.5px solid var(--border);
}
.svc-card--alt .svc-card__cta:hover {
  border-color: var(--text-3);
}
.svc-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: inherit;
}
.svc-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.svc-card:hover::before { opacity: 0.04; }

/* Featured card */
.svc-card--featured {
  background: var(--grad);
  border-color: transparent;
  color: #fff;
}
.svc-card--featured .svc-card__desc { color: rgba(255,255,255,0.8); }
.svc-card--featured .svc-card__icon { color: rgba(255,255,255,0.9); border-color: rgba(255,255,255,0.2); }
.svc-card--featured .svc-card__arrow { color: rgba(255,255,255,0.6); }
.svc-card--featured:hover { transform: translateY(-6px) scale(1.01); }
.svc-card--featured::before { display: none; }

.svc-card__icon {
  width: 48px;
  height: 48px;
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  flex-shrink: 0;
  transition: border-color 0.3s, color 0.3s;
}
.svc-card__icon svg { width: 22px; height: 22px; }
.svc-card:not(.svc-card--featured):hover .svc-card__icon {
  border-color: var(--red);
  color: var(--red);
}

.svc-card__title {
  font-family: var(--font-d);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.svc-card--featured .svc-card__title { color: #fff; }

.svc-card__kicker {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-3);
}
.svc-card--featured .svc-card__kicker { color: rgba(255,255,255,0.8); }

.svc-card__desc {
  font-size: 0.9375rem;
  color: var(--text-2);
  line-height: 1.65;
}
.svc-card--featured .svc-card__desc { color: rgba(255,255,255,0.85); }

.svc-card__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-left: 1.1rem;
  margin: 0.25rem 0 0.75rem;
}
.svc-card__list li {
  position: relative;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-2);
}
.svc-card__list li::before {
  content: '•';
  position: absolute;
  left: -0.9rem;
  color: var(--red);
}
.svc-card--featured .svc-card__list li { color: rgba(255,255,255,0.85); }
.svc-card--featured .svc-card__list li::before { color: rgba(255,255,255,0.9); }

.svc-card__cta {
  margin-top: auto;
  align-self: flex-start;
}
.svc-card--featured .svc-card__cta {
  color: #fff;
  border-color: rgba(255,255,255,0.35);
  background: transparent;
}
.svc-card--featured .svc-card__cta:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.6);
}

.svc-card__arrow {
  display: block;
  font-size: 1.25rem;
  color: var(--text-3);
  transition: transform 0.3s var(--ease-spring), color 0.3s;
  margin-top: auto;
}
.svc-card:hover .svc-card__arrow { transform: translateX(6px); color: var(--text); }
.svc-card--featured:hover .svc-card__arrow { color: rgba(255,255,255,0.9); }


/* ── TECHNOLOGIES ── */
.technologies {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.technologies::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, var(--red-dim) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, var(--blue-dim) 0%, transparent 50%);
  pointer-events: none;
}

.technologies .section__head { max-width: none; }

.tech-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.tech-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tech-filter {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.tech-filter:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.tech-filter.is-active {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 12px 24px rgba(31, 41, 55, 0.18);
}
.tech-filter:focus-visible {
  outline: 2px solid rgba(255,255,255,0.7);
  outline-offset: 2px;
}

.tech-count {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.85rem;
  color: var(--text-3);
}
.tech-count__value {
  font-weight: 700;
  color: var(--text);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
  position: relative;
  z-index: 1;
  grid-auto-rows: 1fr;
}

.tech-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
  padding: 0;
  height: 300px;
  perspective: 1000px;
  transition: transform 0.25s var(--ease-spring), box-shadow 0.25s ease, border-color 0.25s ease;
}
.tech-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}
.tech-card:nth-child(even)::after { background: var(--blue); }
.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.tech-card:hover::after { transform: scaleX(1); }
.tech-card--hidden { display: none; }
.tech-card:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.6);
  outline-offset: 2px;
}

.tech-card__inner {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: transform 0.6s var(--ease-spring);
}

.tech-card:hover .tech-card__inner,
.tech-card:focus-visible .tech-card__inner,
.tech-card:focus .tech-card__inner,
.tech-card.is-flipped .tech-card__inner {
  transform: rotateY(180deg);
}

.tech-card__face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.5rem;
  text-align: center;
  background: var(--surface);
}

.tech-card__face--back {
  transform: rotateY(180deg);
}

.tech-card__logo {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(255,255,255,0.08);
}
.tech-card__logo.is-hidden { display: none; }
.tech-card.is-logo-missing .tech-card__face { gap: 0.4rem; }

.tech-card__logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}


.tech-card__meta {
  display: none;
}
.tech-card__name {
  font-family: var(--font-d);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin: 0;
}
.tech-card__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-2);
}


/* ── CONTACT ── */
.contact { background: var(--bg-alt); }

.contact__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact__desc {
  margin-top: 1.25rem;
  font-size: 1.0625rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact__channels {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.channel {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  max-width: 280px;
}
.channel svg { width: 20px; height: 20px; flex-shrink: 0; }
.channel:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); }

.channel--wa  { color: #25D366; border-color: rgba(37,211,102,0.2); }
.channel--wa:hover  { background: rgba(37,211,102,0.05); border-color: rgba(37,211,102,0.4); }
.channel--email { color: var(--blue); border-color: var(--blue-dim); }
.channel--email:hover { background: var(--blue-dim); border-color: rgba(26,63,170,0.3); }

/* Contact Form */
.contact__form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: var(--shadow-md);
}

.field { display: flex; flex-direction: column; gap: 0.5rem; }

.field__label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.01em;
}

.field__input,
.field__textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  padding: 0.875rem 1rem;
  font-family: var(--font-b);
  font-size: 0.9375rem;
  color: var(--text);
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
  outline: none;
  resize: none;
}
.field__input::placeholder,
.field__textarea::placeholder { color: var(--text-3); }

.field__input:focus,
.field__textarea:focus {
  border-color: var(--blue);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--blue-dim);
}

.field__input.is-error,
.field__textarea.is-error { border-color: var(--red); box-shadow: 0 0 0 3px var(--red-dim); }

.field__error {
  font-size: 0.8125rem;
  color: var(--red);
  min-height: 1.2em;
  display: block;
}

.form__success {
  padding: 1rem;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.25);
  border-radius: var(--r-sm);
  color: #16a34a;
  font-size: 0.9375rem;
  font-weight: 500;
  text-align: center;
}
[data-theme="dark"] .form__success { color: #4ade80; }


/* ── FOOTER ── */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}
.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.footer__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}
.footer__nav {
  display: flex;
  gap: 2rem;
}
.footer__nav a {
  font-size: 0.9rem;
  color: var(--text-2);
  transition: color 0.2s;
}
.footer__nav a:hover { color: var(--text); }
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.footer__copy,
.footer__made {
  font-size: 0.875rem;
  color: var(--text-3);
}


/* ── SCROLL ANIMATIONS (initial state) ──
   Only hide elements when GSAP is confirmed loaded.
   Without the .gsap-ready class, everything stays visible (graceful fallback).
── */
.gsap-ready .js-reveal,
.gsap-ready .js-stagger,
.gsap-ready .js-reveal-right {
  opacity: 0;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .tech-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .services__grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tech-toolbar { align-items: flex-start; }
  .tech-card { height: 300px; }
  .contact__layout { grid-template-columns: 1fr; gap: 3rem; }
  .footer__top { flex-direction: column; gap: 1.5rem; text-align: center; }
  .footer__nav { flex-wrap: wrap; justify-content: center; gap: 1.25rem; }
  .footer__bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  .hero__cta { flex-direction: column; align-items: flex-start; }
  .hero__title { font-size: clamp(2.25rem, 8vw, 3.5rem); }
  .section__inner { padding: 4rem 1.25rem; }
  .section__head { margin-bottom: 2.5rem; }
  .contact__form { padding: 1.75rem; }
}

@media (max-width: 520px) {
  .nav__inner { padding: 0 1rem; }
  .nav__right { gap: 0.5rem; }
  .logo { font-size: 1.1rem; }
  .theme-btn { width: 32px; height: 32px; }
  .lang-btn { min-width: 36px; height: 32px; padding: 0 0.55rem; font-size: 0.6875rem; }
  .btn--sm { padding: 0.45rem 0.9rem; font-size: 0.75rem; }
}

@media (max-width: 420px) {
  .nav__right { gap: 0.4rem; }
  .theme-btn { display: none; }
  .logo { font-size: 1.05rem; }
  .btn--sm { padding: 0.4rem 0.8rem; font-size: 0.72rem; letter-spacing: 0.01em; }
}

@media (max-width: 480px) {
  .tech-grid { grid-template-columns: 1fr; }
  .tech-card { height: 320px; }
  .svc-card { padding: 1.75rem; }
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js-reveal, .js-stagger, .js-reveal-right { opacity: 1 !important; transform: none !important; }
  .page-loader__ring { animation: none !important; }
}